4.4.1.1	cystathionine gamma-lyase	-	
4.4.1.10	cysteine lyase	-	
4.4.1.11	methionine gamma-lyase	-	
4.4.1.12	sulfoacetaldehyde lyase	deleted, activity due to EC 2.3.3.15	
4.4.1.13	cysteine-S-conjugate beta-lyase	-	
4.4.1.14	1-aminocyclopropane-1-carboxylate synthase	-	
4.4.1.15	D-cysteine desulfhydrase	-	
4.4.1.16	selenocysteine lyase	-	
4.4.1.17	Holocytochrome-c synthase	-	
4.4.1.18	prenylcysteine lyase	transferred to EC 1.8.3.5